public void OnUploadProgress(DropZoneFileUploadProgress file)
{
if (file is null)
{
throw new ArgumentNullException(nameof(file));
}
if (file.Path is null)
{
throw new ArgumentException("file's Path Property should not be null.", nameof(file));
}
if (file.Name is null)
{
throw new ArgumentException("file's Name Property should not be null.", nameof(file));
}
UploadProgress.InvokeAsync(new DropZoneUploadProgressEventArgs(file.Path, file.Name, file.Size, file.Key, file.SessionId, file.Progress));
}